LTC1536CS8 データシートの表示（PDF） - Linear Technology
部品番号
コンポーネント説明
メーカー
LTC1536CS8 Datasheet PDF : 12 Pages
| |||
LTC1536
ELECTRICAL CHARACTERISTICS The ● denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VCC3 = 3.3V, VCC5 = 5V, VCCA = VCC3 unless otherwise noted.
SYMBOL PARAMETER
CONDITIONS
MIN TYP MAX
IPBR
PBR Pull-Up Current
VIL
PBR, RST Input Low Voltage
VIH
PBR, RST Input High Voltage
tPW
PBR Min Pulse Width
tDB
PBR Debounce
PBR = 0V, 0°C ≤ TA ≤ 70°C
PBR = 0V, – 40°C ≤ TA ≤ 85°C
Deassertion of PBR Input to SRST
Output (PBR Pulse Width = 1µs)
●
3
●
3
7
10
7
15
●
0.8
●
2
● 40
●
20
35
tPB
PBR Assertion Time for Transition
PBR Held Less Than VIL, 0°C to 70°C
from Soft to Hard Reset Mode
PBR Held Less Than VIL, – 40°C to 85°C
● 1.4
2.0
2.8
● 1.4
2.0
3.0
VOL
RST Output Voltage Low
ISINK = 5mA
●
0.15
0.4
ISINK = 100µA
VCC3 = 1V, VCC5 = 0V
●
0°C ≤ TA ≤ 70°C
VCC3 = 0V, VCC5 = 1V
●
VCC3 = 1V, VCC5 = 1V
●
0.05
0.4
0.05
0.4
0.05
0.4
ISINK = 100µA
VCC3 = 1.1V, VCC5 = 0V
●
– 40°C ≤ TA ≤ 85°C VCC3 = 0V, VCC5 = 1.1V
●
VCC3 = 1.1V, VCC5 = 1.1V ●
0.05
0.4
0.05
0.4
0.05
0.4
SRST Output Voltage Low
ISINK = 2.5mA
●
0.15
0.4
RST Output Voltage Low
ISINK = 2.5mA
●
0.15
0.4
VOH
RST Output Voltage High (Note 3)
ISOURCE = 1µA
● VCC3 – 1
SRST Output Voltage High (Note 3)
ISOURCE = 1µA
● VCC3 – 1
RST Output Voltage High
ISOURCE = 600µA
● VCC3 – 1
tPHL
Propagation Delay RST to RST
CRST = 20pF
25
High Input to Low Output
tPLH
Propagation Delay RST to RST
CRST = 20pF
45
Low Input to High Output
tFAIL
VCC5 or VCC3 0.5V Undervoltage
VCC5 Drops Below 4.25V or VCC3 Drops
●
to RST (Note 4)
Below 2.5V (Note 5)
150 450
tPF
VCC5 < (VCC3 – 300mV) RST (Note 4) VCC5 Drops Below VCC3 By 300mV
(Note 6)
●
50
90
UNITS
µA
µA
V
V
ns
ms
s
s
V
V
V
V
V
V
V
V
V
V
V
V
ns
ns
ns
ns
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: All voltage values are with respect to GND.
Note 3: The output pins SRST and RST have weak internal pull-ups to
VCC3 of 6µA. However, external pull-up resistors may be used when faster
rise times are required.
Note 4: Conforms to PCI Local Bus Specification Rev 2.1,
Sect. 4.3.2 for tFAIL.
Note 5: VCC3 or VCC5 falling at – 0.1V/µs, time measured from
VRTX – 500mV to RST at 1.5V.
Note 6: VCC5 falling from 5V to 3V in ≤10ns, time measured from
VCC5 = (VCC3 – 300mV) to RST at 1.5V.
1536fa
3
Share Link: 